Stefan Schlott created COMPRESS-497:
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Summary: Handle missing offset to end header in 7z
Key: COMPRESS-497
URL: https://issues.apache.org/jira/browse/COMPRESS-497
Project: Commons Compress
Issue Type: Improvement
Components: Archivers
Reporter: Stefan Schlott
When dealing with multipart 7z files, it may occur that the start header is
invalid (all zeros) - see [https://www.7-zip.org/recover.html], section "There
is no correct End Header at the end of archive". This can happen if the first
part of the file is moved while the overall operation hasn't finished yet (the
start header is written as very last step).
Detect a missing start header (all bytes are zero) and try to guess the end
header.
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